﻿/*   
    Copyright (C) 2009 Galaktika Corporation ZAO

    This file is a part of Galaktika.BusinessMonitor
 
    Galaktika.BusinessMonitor is a free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
      
    You should have received a copy of the GNU General Public License
    along with Galaktika.BusinessMonitor.  If not, see <http://www.gnu.org/licenses/>.
  
    If GPL v.3 is not suitable for your products or company,
    Galaktika Corp provides Galaktika.BusinessMonitor under a flexible commercial license
    designed to meet your specific usage and distribution requirements.
    If you have already obtained a commercial license from Galaktika Corp,
    you can use this file under those license terms.
*/

using System;
using System.Net;
using System.Windows.Browser;

namespace Galaktika.BI.Silverlight.ClientApp
{
    public class HelpManager
    {
        //private static HtmlElement m_HelpContainer;
        //private static HtmlElement HelpContainer
        //{
        //    get
        //    {
        //        if (m_HelpContainer == null)
        //        {
        //            m_HelpContainer = HtmlPage.Document.GetElementById("helpContainer");
        //        }

        //        return m_HelpContainer;
        //    }
        //}

        public static void Hide()
        {
            if (HtmlPage.IsEnabled)
            {
                var bmHelp = HtmlPage.Window.GetProperty("bmHelp") as ScriptObject;
                if (bmHelp != null)
                {
                    bmHelp.Invoke("hide");
                    //HtmlPage.Window.Eval("bmHelp.hide()");
                }
            }
        }

        public static void Show(string helpName)
        {
            if (HtmlPage.IsEnabled)
            {
                SetHelpCore(helpName);
            }
        }

        public static bool IsVisible
        {
            get
            {
                if (HtmlPage.IsEnabled)
                {
                    var bmHelp = HtmlPage.Window.GetProperty("bmHelp") as ScriptObject;
                    if (bmHelp != null)
                    {
                        var isVisible = bmHelp.Invoke("getIsVisible");
                        if (isVisible is bool)
                        {
                            return (bool)isVisible;
                        }
                    }
                }

                return false;
            }
        }

        public static void SetHelp(string helpName)
        {
            if (IsVisible)
            {
                SetHelpCore(helpName);
            }
        }

        private static void SetHelpCore(string helpName)
        {
            Uri uri = new Uri(HtmlPage.Document.DocumentUri, new Uri(helpName, UriKind.Relative));
            var bmHelp = HtmlPage.Window.GetProperty("bmHelp") as ScriptObject;
            if (bmHelp != null)
            {
                bmHelp.Invoke("show", uri.ToString());
                //string code = string.Format("bmHelp.show('{0}')", uri.ToString());
                //HtmlPage.Window.Eval(code);
            }
        }

    }
}
